Hand and automatic roll trip



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J. R. BLAINE HAND AND AUTOMATIC ROLL TRIP:

Filed Aug. 17, 1921 June 16, 1925.

June 16, 1925. v 1,542,027

J. R. BLAINE HAND AND AUTOMATIC ROLL TRIP Filed Aug. 1'7, 1921 2Sheets-Sheet 2 Patented June 16, 1925. I

v UNITED STATES 5 PATENT omen.

JOSEPH 'R. BLAINE, OF CHICAGO, ILLINOIS, ASSIGNOR TO MIEHLE PRINTINGPRESS AND MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS. A CORPORATION OFrnmnors.

I HAND AND AUTOMATIC ROLL TRIP.

' Application filed August 17, 1921}- Serial No. 492,882.

To all whom it mag concern:

7 Be it known that I, JOSEPH R. BLA INE', a citizen of the UnitedStates, residing at C cago, in the county of Cook and State 0 Illinois,have invented certain new and use ful Improvements in Hand and AutomaticRoll Trips, of which the following is a specification.

This invention relates to printing presses, and more particularly toinking roll trip mechanism therefor. a

One object ofmy invention is to improve inking roll'trip mechanism andto provide simple, durable and eflicient cooperative parts for trippingthe inking rolls both au tomaticall and manually and in a manner to meetal of therequirements for successful commercial operation. p This andother objects are accomplished by means of the arrangement disclosed onthe accompanying sheets of drawings, in

Figure 1 is a fragmentary side elevation of a printing press embodyingmy invention; and

Figure 2 is afra-gmentary end elevation of the same arrangement.

The Various novel features of my invention will be ap arent from thefollowing description and rawings and will be particularly pointed outinthe appended claims.

Referring to the figures of the drawings, it will be noted that I havedisclosed my invention in connection with an offset type of printingpress including a form cylinder 10 and a blanket cylinder 11 mounted ina suitable frame 12, it being understood that there is an impressioncylinder which engages the blanket cylinder 11, and, as disclosed in myearlier Patent No. 1,339,316, granted May 4, 1920, the impressioncylinder ma be tripped out of engagement with the blan ret cylinder 11and the blanket cylinder also tripped out of en agement with theimpression cylinder and the plate cylinder. In said same patent I havedisclosed means for tripping the inking rollers, and this presentinvention is an improvement upon that disclosed in the patentinquestion. It will be understood that the automatic tripping action ofthe inking. rolls in this present case is transmitted through aconnecting rod 13 in a manner such as described in the aforesaidmentioned patent."

ception of cam members ly, the cams 20 rollers 14, vibratory rollers 15are all mounted in The form inkin ers 9 and rider ro a frame 16 which isvertically guidably of the press. portions of the inning in the form ofarms 18 with notched portions 19 therein for the re- 20 which areoperatively connected to arms 21 so that when the arms 21 are swungdownwardly and inwardwill cause an upward move ment of the frame 16 fortripping or raising the inking rolls 14 out of engagement with the formcylinder 10, that the arms 21 arepivotally supported at the points 22 inany suitable manner. The left-hand arm 21 is connected by a link 23 toone arm-24 of a bell crank lever 25 pivoted on a shaft 26, said bellcrank lever 25 having a second arm 27 to which one end of alink 28 ispivoted, the other end of said link being pivotally connected to theright-hand rocker arm 21. The bell crank lever 25 has a third arm 29carrying a projection 30 which under normal it being understoodoperating conditions occupies a notch 31 l 13 heretofore mentioned isconnected at 35 to the eccentric 33 for transmitting thereto theautomatic tripping action,that is to say, if for any reason the press isautomatically tripped, as when a sheet has not been properly registered,not only is it desired to trip the blanket cylinder out of engagementwith the'impression cylinder and plate cylinder, as described in theaforesaid mentioned patent, but it is also desirable to move the inkingrolls out of engagement with the plate cylinder. Let it be assumed thatfor some reason the press is automatically tripped. Under suchconditions the connecting rod 13 is raised, shifting the eccentricbearing 33 in a clockwise direction, as viewed in Figure 1, therebycausing the link 32to move downwardly and the bell crank lever 25 torotate in a counterclockwise direction,.drawing the links 23 and 28downwardly for rotating the arms 21 downwardly and inwardly,

thereby, actuating the cam 20 for lifting the frame maintained ininterlocked position with the projection 30. on arm 29 by a springu36coiled around a bar 37, one end of W 'ch is pivotally connected to thelink 32 and the other end of which is slidably received by a lug 38formed on the periphery of the eccentric bearing 33. It also will beunderstoodthat when the cause for the tripping of the press ceases thebearing 33 w1ll be rotated automatically in a counterclockwise directionfor causing the inking rolls again to move into engagement with the formcylinder. Such is the mechanism for automatically tripping the inkingrollers.

The inking rollers also may be tripped manually. In this connection abracket 39 is provided which is pivotally mounted on the shaft 26 and isintegrally formed with an operating lever 40 which normally is locked tothe frame 12 of the printing press by means of a pin 41 operated by anauxiliary lever 42 pivotally mounted on the lever 40. The bracket hastwo cam portions 43 and 44. The cam portion 43 cooperates with a roller45 mounted in the link 32 and is arranged in a manner such that when thebracket 39 is swung in a counterclockwise direction the link 32 will beforced out of interlocking relationship with a pin 30 on arm 29 to breakthe operating connection through which the inking rollers areautomatically tripped. The cam 44 cooperates with a roller 46 mounted ina link 47 pivotally connected to a hand-operated lever 48 pivotallyconnected to the frame at 49. Normally the lever 48 is locked to theframe by a pin 50 operated by a supplemental lever 51 pivotally mountedon the lever 48. As the bracket 39 is rotated in acounterclockwise,direction for breaking the automatic trippingconnection, as described here inabove, the link 47, through the cam 44,is permitted to drop into a position whereby a notch 52 in the link 47may pass over and interlock with the pin 53 forming the pivotalconnection between link 28 and arm 27. It is apparent, therefore, thatunder these conditions to manually trip the inking rolls it is merelynecessary to 'swing the lever 48 to the right, whereupon the links 23and 28 will be drawn downwardly for raising the inking rolls out ofengagement with the form cylinder 10. It will be understood, of course,that when the lever 48 is actuated for manually tripping the inkingrollers, the lever 40 will be locked in its upper position wherein itslocking pin 41 occupies a receiving opening 54 1n the frame. The manualtripping operation is performed only when the lever 40 is in its raisedposition. If desired to lock the inking rollers in trip positionafterthe same have been tripped manually, the same may be done by permittingthe locking key 50 to pass into an opening 55 in the frame.

WVhen it is desired to free the inking rolls from their trippedcondition after they have been tripped manually, the lever 48 1s firstswung back into the position shown in Figure 1 of the drawings and thenthe lever 40 is swung back into the position shown in the same figure,thereby causing the link 47 to be disengaged from the bell crank lever25 through the action of cam 44 and for permitting, through the actionof cam 43 the link 32 to become locked with the bell crank lever 25preparatory to any automatic tripping action which may occur.

It is my intention to cover all modifications of the invention fallingwithin the spirit and scope of the following claims.

I claim:

1. In a printing press, the combination of inking rolls, an operatingcylinder having a journal, a member pivotally mounted thereon andnormally operatively connected to said inking rolls for tripping thelatter, means for releasing the operative connection between said memberand rolls, and-other means for tripping said rolls after releasing saidoperative connection.

2. In a printing press, the combination of a form carrying member,inking rolls cooperating therewith, a frame carrying said rolls, armsthrough which said frame may be raised for tripping said rolls, a bellcrank lever having a plurality of arms, links connecting arms of saidbell crank lever with the aforesaid arms for transmitting trippingaction to the latter, and means for releasably connecting said bellcrank lever to an actuating source.

3. In a printing press, the combination of a form carrying member,inking rolls cooperating therewith, a frame carrying said rolls, armsthrough which said frame may be raised for tripping said rolls, a bellcrank lever having a plurality of arms, links connecting arms of saidbell crank lever with the aforesaid arms for transmitting trippingaction to the latter, means releasably connected to said bell cranklever for automatically actuating the latter, and separate means formanually actuating said bell crank lever.

4. In a printing press, the combination of a form carrying member,inking rolls cooperating therewith, a frame carrying said rolls, armsthrough which said frame may be raised for tripping said rolls, a bellcrank lever having a plurality of arms, links connecting arms of saidbell crank lever with the aforesaid arms for transmitting action to thelatter, means for automatically and manually actuating said bell cranklever, and means for selectively controlling the automatic or manualactuation.

Inn

5. In a printing press, the combination of ment with said form carryingmember including'a bell crank lever operatively con-1 nected to saidframe, an automaticaly actuv ated link releasably connected to said bellcrank lever, and cam means for controlling the releasable connectionbetween said link and bell crank lever.

6. In a printing press, the combination of a form carrying member,inking rolls co operating therewith, a frame for carrying said inkingrolls, means for moving said frame for tripping said rolls out ofengagement With said form carrying member including a bell crank leveroperatively connected to said frame, an automatically actuated linkreleasably connected to said bell crank lever, said rolls being trippedautomatically through said link, means for manually tripping saidrollsWhen said link is disconnected from said bell crank lever,

and cam means for controlling Which of said tripping means shall beeffective.

7. In a printing press, the combination of a form cylinder, a blanketcylinder associated therewith, inking rolls cooperating with said formcylinder, a frame for carrying said inking rolls, a bell crank leveroperatively connected to said frame, a member loose on a journal of saidblanket cylinder being connected to trip mechanism of the press andhaving a releasable connection with said bell crank lever, said rollsbeing automatically tripped away from said form cylinder when saidmember is operatively connected with said bell crank lever, and meansfor manually tripping said inking rolls when said member is notoperatively connected with said bell crank lever.

Signed at Chicago, Illinois, this 12th day of August, 1921.

JOSEPH R. BLAINE.

